Percentage Calculator

Calculate percentage increases, decreases, differences, and more with precision. Perfect for business, finance, and everyday calculations.

Select Calculator Type

📐 Percentage Formulas Reference

📈 Increase

((New - Old) / Old) × 100

Percentage growth from original value

📉 Decrease

((Old - New) / Old) × 100

Percentage reduction from original value

🔄 Difference

|A - B| / ((A + B) / 2) × 100

Relative difference between two values

🎯 Percentage Of

(Percentage / 100) × Value

Calculate X% of a given value

💡 Real-world Examples

💼 Business & Finance

Sales Growth

Revenue increased from $100K to $120K = 20% increase

Discount Calculation

25% off $80 item = $20 discount, $60 final price

Tax Calculation

8.5% tax on $150 purchase = $12.75 tax

📚 Academic & Statistics

Grade Improvement

Score improved from 75% to 85% = 13.33% increase

Population Change

City grew from 50K to 65K people = 30% growth

Error Rate

Errors reduced from 10% to 3% = 70% decrease

✨ Features

🎯

Multiple Calculations

Support for increase, decrease, difference, and percentage of calculations

⚡

Real-time Results

Instant calculations as you type with comprehensive validation

💼

Business Ready

Perfect for finance, sales, discounts, and business analytics